| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.hadoop.io; |
| |
| import org.junit.Test; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.assertFalse; |
| |
| |
| import java.io.IOException; |
| import java.util.EnumSet; |
| import java.util.Iterator; |
| import java.lang.reflect.Type; |
| |
| |
| /** Unit test for EnumSetWritable */ |
| public class TestEnumSetWritable { |
| |
| enum TestEnumSet { |
| CREATE, OVERWRITE, APPEND; |
| } |
| |
| EnumSet<TestEnumSet> nonEmptyFlag = EnumSet.of(TestEnumSet.APPEND); |
| EnumSetWritable<TestEnumSet> nonEmptyFlagWritable = |
| new EnumSetWritable<TestEnumSet>(nonEmptyFlag); |
| |
| @SuppressWarnings("unchecked") |
| @Test |
| public void testSerializeAndDeserializeNonEmpty() throws IOException { |
| DataOutputBuffer out = new DataOutputBuffer(); |
| ObjectWritable.writeObject(out, nonEmptyFlagWritable, nonEmptyFlagWritable |
| .getClass(), null); |
| DataInputBuffer in = new DataInputBuffer(); |
| in.reset(out.getData(), out.getLength()); |
| EnumSet<TestEnumSet> read = ((EnumSetWritable<TestEnumSet>) ObjectWritable |
| .readObject(in, null)).get(); |
| assertEquals(read, nonEmptyFlag); |
| } |
| |
| EnumSet<TestEnumSet> emptyFlag = EnumSet.noneOf(TestEnumSet.class); |
| |
| @SuppressWarnings("unchecked") |
| @Test |
| public void testSerializeAndDeserializeEmpty() throws IOException { |
| |
| boolean gotException = false; |
| try { |
| new EnumSetWritable<TestEnumSet>(emptyFlag); |
| } catch (RuntimeException e) { |
| gotException = true; |
| } |
| |
| assertTrue( |
| "Instantiation of empty EnumSetWritable with no element type class " |
| + "provided should throw exception.", |
| gotException); |
| |
| EnumSetWritable<TestEnumSet> emptyFlagWritable = |
| new EnumSetWritable<TestEnumSet>(emptyFlag, TestEnumSet.class); |
| DataOutputBuffer out = new DataOutputBuffer(); |
| ObjectWritable.writeObject(out, emptyFlagWritable, emptyFlagWritable |
| .getClass(), null); |
| DataInputBuffer in = new DataInputBuffer(); |
| in.reset(out.getData(), out.getLength()); |
| EnumSet<TestEnumSet> read = ((EnumSetWritable<TestEnumSet>) ObjectWritable |
| .readObject(in, null)).get(); |
| assertEquals(read, emptyFlag); |
| } |
| |
| @SuppressWarnings("unchecked") |
| @Test |
| public void testSerializeAndDeserializeNull() throws IOException { |
| |
| boolean gotException = false; |
| try { |
| new EnumSetWritable<TestEnumSet>(null); |
| } catch (RuntimeException e) { |
| gotException = true; |
| } |
| |
| assertTrue( |
| "Instantiation of empty EnumSetWritable with no element type class " |
| + "provided should throw exception", |
| gotException); |
| |
| EnumSetWritable<TestEnumSet> nullFlagWritable = |
| new EnumSetWritable<TestEnumSet>(null, TestEnumSet.class); |
| |
| DataOutputBuffer out = new DataOutputBuffer(); |
| ObjectWritable.writeObject(out, nullFlagWritable, nullFlagWritable |
| .getClass(), null); |
| DataInputBuffer in = new DataInputBuffer(); |
| in.reset(out.getData(), out.getLength()); |
| EnumSet<TestEnumSet> read = ((EnumSetWritable<TestEnumSet>) ObjectWritable |
| .readObject(in, null)).get(); |
| assertEquals(read, null); |
| } |
| |
| public EnumSetWritable<TestEnumSet> testField; |
| |
| @Test |
| public void testAvroReflect() throws Exception { |
| String schema = "{\"type\":\"array\",\"items\":{\"type\":\"enum\"," |
| + "\"name\":\"TestEnumSet\"," |
| + "\"namespace\":\"org.apache.hadoop.io.TestEnumSetWritable$\"," |
| + "\"symbols\":[\"CREATE\",\"OVERWRITE\",\"APPEND\"]}," |
| + "\"java-class\":\"org.apache.hadoop.io.EnumSetWritable\"}"; |
| Type type = |
| TestEnumSetWritable.class.getField("testField").getGenericType(); |
| AvroTestUtil.testReflect(nonEmptyFlagWritable, type, schema); |
| } |
| |
| /** |
| * test {@link EnumSetWritable} equals() method |
| */ |
| @Test |
| public void testEnumSetWritableEquals() { |
| EnumSetWritable<TestEnumSet> eset1 = new EnumSetWritable<TestEnumSet>( |
| EnumSet.of(TestEnumSet.APPEND, TestEnumSet.CREATE), TestEnumSet.class); |
| EnumSetWritable<TestEnumSet> eset2 = new EnumSetWritable<TestEnumSet>( |
| EnumSet.of(TestEnumSet.APPEND, TestEnumSet.CREATE), TestEnumSet.class); |
| assertTrue("testEnumSetWritableEquals error !!!", eset1.equals(eset2)); |
| assertFalse("testEnumSetWritableEquals error !!!", |
| eset1.equals(new EnumSetWritable<TestEnumSet>(EnumSet.of( |
| TestEnumSet.APPEND, TestEnumSet.CREATE, TestEnumSet.OVERWRITE), |
| TestEnumSet.class))); |
| assertTrue("testEnumSetWritableEquals getElementType error !!!", eset1 |
| .getElementType().equals(TestEnumSet.class)); |
| } |
| |
| /** |
| * test {@code EnumSetWritable.write(DataOutputBuffer out)} |
| * and iteration by TestEnumSet through iterator(). |
| */ |
| @Test |
| public void testEnumSetWritableWriteRead() throws Exception { |
| EnumSetWritable<TestEnumSet> srcSet = new EnumSetWritable<TestEnumSet>( |
| EnumSet.of(TestEnumSet.APPEND, TestEnumSet.CREATE), TestEnumSet.class); |
| DataOutputBuffer out = new DataOutputBuffer(); |
| srcSet.write(out); |
| |
| EnumSetWritable<TestEnumSet> dstSet = new EnumSetWritable<TestEnumSet>(); |
| DataInputBuffer in = new DataInputBuffer(); |
| in.reset(out.getData(), out.getLength()); |
| dstSet.readFields(in); |
| |
| EnumSet<TestEnumSet> result = dstSet.get(); |
| Iterator<TestEnumSet> dstIter = result.iterator(); |
| Iterator<TestEnumSet> srcIter = srcSet.iterator(); |
| while (dstIter.hasNext() && srcIter.hasNext()) { |
| assertEquals("testEnumSetWritableWriteRead error !!!", dstIter.next(), |
| srcIter.next()); |
| } |
| } |
| } |